Daily Events in Fifth Gen

Solution 1:

Serebii.net has a list of daily and weekly events:

Daily Events

• Swarms
• Massage (Castelia City)
• Musical Props (Opelucid City)
• Berry Clown (Castelia City)
• Ferris Wheel Battle (Nimbasa City)
• Heart Scale Lady (Drifveil City)
• Cynthia Battle (Undella Town)
• Furniture (Nacrene City)
• GameFreak Battle
• Opelucid City Battles
• Star Piece Rock (Pinwheel Forest)
• Sports Arenas Battles
• Black City Trainers / White City Items
• Royal Unova Battles
• Undella Villa Battles
• Patrat Game (Marvelous Bridge)
• Weather Stones (Route 8)
• Fossils (Twist Mountain Cave)
• Village Bridge Waiter
• Village Bridge Fisherman
• Treasure Hunter (Route 13)

Weekly Events

• Musharna (Dreamyard, Fridays)
• Bianca Battle (Nuvema Town, Saturday)
• Casteliacone (Castelia City, Tuesdays)
• Anville Town - Lost Property
• Anville Town - Item Trades